Pi began as the 16th letter in the Greek alphabet, and looked like this: π. Now, we know pi as the circle's circumference. Pi is one of the most important mathematical equations used in science and engineering. Pi, as a decimal, looks like this: 3.14159265358979323846...
Notice the . after the last numeral. That indicates that pi is an irrational number. That means that it does not have determined ending, and also that the numbers follow no certain pattern. In other words, in Pi, you will never see the same string of numbers twice.
A brief history of π
The symbol "π" is originated from the Greek word "περίμετρος" (meaning perimeter). As I have already mentioned, Pi started out as a Greek letter, however many people wondered about how to show an unending decimal like 3.1415926535897932346... So, many people began to associate the letter π with this decimal, and then the circumference of a circle (however, it is still possible to write it as 3.14, but it is more accepted as π). When using pi in problems use the decimal 3.14, it is a shorted version of the never ending number. 3.14 is π rounded to the nearest thousandth.
Formulas of π
Pi is used in many different formulas, some of which you might never learn. Here are some examples of π used in formulas.
Did you know that there is a Pi day? Well yes there is. It is March 14 witch is also Einstein's birthday. To learn more about it click on Pi Day! below. Pi was sort of actually discovered by Egyptians and Babylonians about 4,000 years ago. The symbol pi was first introduced by William Jones. Isn't it crazy that this man started this whole thing, I mean look at pi now! There is actually a Pi movie called Pi; The Movie. Pi is now the crazy number.
Find your Birthday!
Pi is such a large number, you may find your birthday in it. See how here.
Pi! The Number!
What is π?
Pi began as the 16th letter in the Greek alphabet, and looked like this: π. Now, we know pi as the circle's circumference. Pi is one of the most important mathematical equations used in science and engineering. Pi, as a decimal, looks like this: 3.14159265358979323846...Notice the . after the last numeral. That indicates that pi is an irrational number. That means that it does not have determined ending, and also that the numbers follow no certain pattern. In other words, in Pi, you will never see the same string of numbers twice.
A brief history of π
The symbol "π" is originated from the Greek word "περίμετρος" (meaning perimeter). As I have already mentioned, Pi started out as a Greek letter, however many people wondered about how to show an unending decimal like 3.1415926535897932346... So, many people began to associate the letter π with this decimal, and then the circumference of a circle (however, it is still possible to write it as 3.14, but it is more accepted as π). When using pi in problems use the decimal 3.14, it is a shorted version of the never ending number. 3.14 is π rounded to the nearest thousandth.Formulas of π
Pi is used in many different formulas, some of which you might never learn. Here are some examples of π used in formulas.C=Rπ2
C=Dπ
Definitions
D= diameter
C= circumference
π=pi, 3.14
Odd Facts About Pi!
Did you know that there is a Pi day? Well yes there is. It is March 14 witch is also Einstein's birthday. To learn more about it click on Pi Day! below. Pi was sort of actually discovered by Egyptians and Babylonians about 4,000 years ago. The symbol pi was first introduced by William Jones. Isn't it crazy that this man started this whole thing, I mean look at pi now! There is actually a Pi movie called Pi; The Movie. Pi is now the crazy number.Find your Birthday!
Pi is such a large number, you may find your birthday in it. See how here.Links
Wikipedia Pi PagePi Formula Page
Ask Dr.Math About Pi
Pi Day!
Planet Math About Pi
The Pi Trivia Game
Pi Land; About Pi
Mister Teacher on Pi
Pi Songs
Pi Song on How Pi StartedKids Talk About Pi